VTT Test Donut Lab Battery Reaches 80% Charge in Under 10 Minutes [pdf]
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femtolisp: A lightweight, robust, scheme-like Lisp implementation
…a purely symbolic gesture… This project began with an attempt to write the fastest lisp interpreter I could in under 1000 lines of C. It snowballed from there as I kept trying to see if I could add powerful features with minimal code. At the same time I assembled a library of some of my […]
I Donut Believe – Presenting Third Party Results (Donut Lab)
Fast Charge Performance Test The first independent test of the Donut Solid State Battery, conducted by VTT Technical Research Centre of Finland, evaluates its charge performance under demanding conditions without active cooling. The cell was tested at both 5C and extreme 11C charge rates, confirming previously stated fast-charging targets, including a 0–80% charge in just […]
Lidar waveforms are worth 40x128x33 words
Lidar Waveforms are Worth 40x128x33 Words Dominik Scheuble, Hanno Holzhüter, Steven Peters, Mario Bijelic, Felix Heide; Proceedings of the IEEE/CVF International Conference on Computer Vision (ICCV), 2025, pp. 28913-28924 Abstract Lidar has become crucial for autonomous driving, providing high-resolution 3D scans that are key for accurate scene understanding. To this end, lidar sensors measure the […]
Ladybird Browser adopts Rust
We’ve been searching for a memory-safe programming language to replace C++ in Ladybird for a while now. We previously explored Swift, but the C++ interop never quite got there, and platform support outside the Apple ecosystem was limited. Rust is a different story. The ecosystem is far more mature for systems programming, and many of […]
QRTape – Audio Playback from Paper Tape with Computer Vision (2021)
Here is a project that I have been tossing around in my head for at least a year or two now. Given advances in audio compression algorithms and computer vision: could reasonably high-quality audio be stored on a paper tape? This is a fascinating concept to me. When considering the complete history of storage media […]
Hacker News.love – 22 projects Hacker News didn’t love
“I don’t understand Tailwind. The entire point of CSS is to separate style from structure. How does applying composable utility classes differ from the old days of using HTML attributes for styling?” — _AzMoo “This is essentially the same as inlining all of your styles in a style attribute on every element. I don’t see […]
Elsevier shuts down its finance journal citation cartel
On Christmas Eve, 9 “peer-reviewed” economics papers were quietly retracted by Elsevier, the world’s largest academic publisher. This includes 7 papers in the International Review of Financial Analysis (a good journal—it has an 18% acceptance rate): Plus two more retractions in Finance Research Letters (29% acceptance rate): Two days later, three more papers were retracted […]
Magical Mushroom – Europe’s first industrial-scale mycelium packaging producer
We are replacing plastic packaging at industrial scale. Why are 21st century products still protected with 1950s materials like expanded polystyrene EPS that persist in landfill for centuries? EPS now carries commercial risk through plastic taxes and reputational risk through environmental impact. There is a better way. Mushroom® Packaging is grown from mycelium and agricultural […]
Out of Light Adjust Share: Caravaggio, La Tour, and the Art of Attention
March 2026 Issue [Criticism] Out of Light Caravaggio, La Tour, and the art of attention by Nicole Krauss, Vocazione di San Matteo (The Calling of St. Matthew), c. 1600, by Caravaggio © Erich Lessing/Bridgeman Images Living in Rome last year, we saw a lot of Caravaggio, and even when we didn’t, we felt him near, […]